The fascinating backstory behind the azimuthal orthographic, the map projection that makes flat maps look like 3-D globes. The azimuthal orthographic is more than just a flattened globe.

Their own azimuthal equidistant double-sided projection, meanwhile, scores 0.881. “We believe it is the most accurate flat map of Earth yet,” the trio write.

Every map tells a lie, but good maps use the right projection to tell specific truths. This is "Get to Know a Projection," a Map Lab series that shows you all the different ways to unround the Earth.